Which SDK version are you using, is it SDK v12.x.x? Which function returns NRF_ERROR_NO_MEM? Is it sd_ble_gatts_service_add() or sd_ble_gatts_characteristic_add()?
If it is one of those two functions then you need to increase the size of the GATT table by setting the .attr_tab_size field of ble_enable_params.gatts_enable_params in ble_stack_init(), e.g.
ble_enable_params.gatts_enable_params.attr_tab_size = 0x1000;
Otherwise if will be set equal to SOFTDEVICE_GATTS_ATTR_TAB_SIZE == BLE_GATTS_ATTR_TAB_SIZE_DEFAULT == 0x000 which causes the SoftDevice to use the default GATT table size which is 0x580 bytes for S130 v2.x.x.
即修改GATT属性列表大小：
调试GATT属性表大小：
1、先预留足够的RAM空间给蓝牙协议栈，如果是MDK，即调整RAM1的起始地址。
2、调整NRF_SDH_BLE_GATTS_ATTR_TAB_SIZE大小，直到nrf_sdh_ble_enable返回ok
3、在services_init中添加所有服务与对应服务的特征，直到所有服务与特征添加成功，如果返回失败则继续回到步骤2加大NRF_SDH_BLE_GATTS_ATTR_TAB_SIZE大小
4、查看nrf_sdh_ble_enable返回的RAM大小，然后调整MDK RAM1起始地址大小大于nrf_sdh_ble_enable返回的RAM大小